Casper l



(No Model.)

C. L. REDFIELD.

IMPRESSION DEVICE EOE MATRIX MAKING MACHINES.

No. 429,737. Patented June 10, 1890.

.7 ,ESS

EN W/ UNITED STATES PATENT OFFICE..

CASPER L. REDFIELD, OF MINNEAPOLIS, MINNESOTA, ASSIGNOR, BY MESNE ASSIGNMENTS, TO TI-IE CI-IICAGO MATRIX MACHINE COMPANY.

IMPRESSION DEVICE FOR MATRIX-MAKING MACHINES.

SPECIFICATION forming part of Letters Patent No. 429,737, dated June 10, 1890.

Application tiled Apm'l 3, 1889. Serial No. 305,882. (No modelJ .To all whom t may concern,.- engage the pin 8 there is provided a stop 9, Be it known that I, CASPER L. REDFIELD, carried in a tubular guide-frame 10, that is a citizen of the United States, residing at Minhung on a pivot 11, and is provided with an neapolis, in the county of Hennepin and State adj usting-screw 12 at thelower side,and is held of Minnesota, have invented certain new and against the screw by a spring 13 at the oppouseful Improvements in Impression Devices site side. By this arrangement the stop 9 can for Matrix-Making Machines, of which the be made to 'engage the pin 8 at a higher or following is a specification. lower point, as may be desired, to lproduce a My invention relates to devices for operatshorter or longer thrust. The stop 9 is carp 1o ing aplunger to impress type-dies into a maried on a stem 14, that extends longitudinally 60 triX-body. through theguide-frame and carries on its The object of the invention is to improve end a head 15. A spring 1G in the guidethe plunger-reciprocating devices, whereby frame exerts its force against the stop 9, tendan intermittent reciprocation is given the ing to thrust it outward toward the clutch. plunger, and but one plunger thrust can be The stop is held from engagement with the 65 made upon each die presented to the plunger. pin by a spring-catch 17, that engages the These improvements will be hereinafter head 15 of the stem carrying the stop. To fully described, and particularly pointed out release the engagement of this catch 17, there in the claims. are provided an electro-magnet 18 and an ar- Y 2o In the accompanying drawings, in which mature 19, that carries a spring-hammer 20. 7o my improvements are illustrated, Figure 1 is Then the current is completed through the avertical section of the devicesand ofaportion magnet and the armature is drawn to it, the of the machine-frame. Fig. 2 is a plan view springhammer 2O delivers a blow to the of the plunger-operating clutch and the despring-catch, releasing it from engagement vices for engaging it; and Figs. 3, 4, 5, and 6 with the head 15, and immediately upon de- 75 show plan and elevation views in detail of livering its blow the hammer, by reason of said clutch. its resiliency, rebounds from contact with the In said drawings, 1 designates a portion of catch-spring, so that for one electrical contact the upper part of the machine-frame, and 2 a there will be but one blow of the hammer for 3o vertical shaft rotated by any suitable mechreleasing the catch 17. 8o anism. On the lower end of this shaft is The clutch-box being rotated rapidly, and formed or secured a clutch-box, composed of the spring-catch 17 being released from enan upper portion 3, fast o n the shaft, and a gagement, the stop 9 is thrown outward by lower sliding portion 4, and extending through the spring and engages the pin S and holds it- 3 5 the clutch and into the shaft 2 is a spindle 5, and the boX member 4 stationary while the carrying the plunger-head G, and secured to upper portion 3 makes so much of a rotation the sliding box 4. On the spindle within the as is necessary to cause thelower portion 4 to clutch-box is a coil-spring 7, having its upper descend far enough to slide the pin 8 past the end attached to the fast portion 8 of the stop 9, and the stop being then free from the: 4o clutch and its lower end to the sliding porpin is engaged by the inclined projection 21 9c tion 4, and serving both to hold the clutchon the lower clutch portion 4, which is lthen faces in engagement and to return the lower being carried forward by the spring 7, and member to its original position after it has the stop is thus moved backward sufficiently been caused to slide therefrom. On the pefor the catch 17 to engage and hold it. The `riphery of the lower portion 4 of the clutch is spring 7 serves also to draw the lower box 95 a pin S, which, when engaged to stop rotation portion back to its original posit-ion of enof the lower portion of the clutch, causes the gagement with the upper portion 3. upper portion to ride on the inclined surfaces If desired, the clutch-box can be provided of the lower, and thus causes the descent of with two pins 8 and two inclined surfaces 21 5o the latter to produce the plunger thrust. To for insuring quicker engagement. The ten- Iso sion of the spring '7 can be regulated by giving the lower box port-ion a half-turn in the proper direction to tighten or loosen the spring. Instead of an electro-magnet and armature for operating the spring-hammer 20, it or equivalent devices may be operated by other mechanical means.

Having described my invention, what I claim, and desire to secure by Letters Patent, is

1. In amatrix-making machine, an impression device consisting of a clutch-box having a constantly-rotating and an intermittinglyrotating member, a connecting-spring therefor, a plunger, a projection, and an incline carried by the latter member, and a springstop for engaging in turn said projection and incline, :forthe purpose set forth.

2. A plunger-operating device for a matrixmaking machine, consisting of a rotating clutch-box having upper and lower portions connected by a spring, a spring-stop for stopping' the rotation of the latter, a catch for holding the stop from engagement, and a rebounding knocker for releasing the catch, for the purpose set forth.

The combination, with the clutch-box carrying the plunger and having a piu on its reciprocating member, of the stop for engaging the pin, and the adjustable guide-frame for the stop for regulating the extent of the plunger thrusts, substantially as set forth.-

4. In a matrix-making machine, a rotating impression device, a spring-stop therefor, a catch for holding the stop, a reboundingknoeker for releasing said catch, and an armature and electro-magnet for actuating the knocker, substantially as set forth.

A5. In combination, a rotary impression dcvice, a stop therefor, a catch for the stop, an electro-magnet, and an armature carried on a spring-knocker arranged to strike a blow to release the catch and rebound from it, substantially as set forth.

G. In a matrix-machine, a rotary impression device consisting of a two-part clutchbox, one member of which carries a plunger and is adapted to reciprocate when intercepted, a spring-actuated stop for engaging such member to intercept its rotation, and devices provided on the part engaged for returning the stop to initial position when rotation is resumed, and a catch for holding the stop when so returned, substantially as set forth.

7. In a matrix-making machine, the combination, with an impression device adapted to reciprocate a plunger upon being engaged by a stop, of a reciprocating stop for engaging the same, a catch for holding the stop from engagement, and a rebounding knocker for releasing the catch, substantially as set forth.

8. The combination, with aclutch-l'lox having a continuously-rotating member and an alternately rotating and reciprocating member, the latter having on its surface a shouldered and an inclined surface, of an axiallyguided reciprocating stop for engaging said shouldered surface to produce a thrust and in turn engaging said inclined surface to cause the retraction of the stop, substantially as set forth.

9. In a matrix-machine, a rotating impression device adapted to reciprocate upon being intercepted, a spring-operated intercepting device, a catch for holding it from cngagement, means for releasing the catch,and means provided on the part engaged by the stop for returning it to its catch upon the completion of a thrust of the impression device, substantially as set forth.

l0. In a matrix-machine, a rotativeimpression device composed of a two-part clutchboX, one member having a lug on its periphery, a stop-pin adapted to be projected in the path of the lug, and means whereby the engagement of the lug and stop-pin will cause the impression device to make an axial thrust of deiinite length and return instantly to its rotative position, substantially as set forth.

ll. In a matrix-machine, a freely-rotating impression device, a reciprocating stop-pin for causing it to make single thrusts of definite length, and means whereby the adjustment of the stop-pin may be made to vary the length of the plunger thrusts, substantially as set forth.

12. In a matrix-machine, an impression dcvice having uniform axial movement, a stopping device for controllingits reciprocations,

and a reboundin gknocker eo-operatin g therewith, substantially as set forth.

13. In a rotative impression device having one member adapted to reciprocate when intercepted, a projection thereon, and a stopping deviee arranged to be interposed in the path of said projection and to remain stationary while the latter slides entirely across its surface, substantially as set forth.

14C. rIhe combination, with a rotative impressing device adapted to reciprocate when intercepted, of astoppingdevice theret'orand a lug having engaging surfaces arranged to bc in rubbing contact during a plunger thrust and to separate with the completion of the thrust, substantially as set forth.

CASPER L. REDFIELD. Witnesses:

I. 1I. GUNCKEL,

M. SCHUMANN.

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